Machine



April 12 1927.

H. LANDSIEDEL ADDING MACHINE Filed Jan. 6. 923

2 Sheets-Sheet 1 IN VENTOR.

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1,624,104 April 12 7' H. LANDSIEI DEL ADDING MACHINE Filed Jan. e. 1923 2 Shoots-Sheet z HIS A TTORNE Y5.

Patented Apr. 12, 1927.

UNITED STATES" PATENT OFFICE.

HARRY LANDSIEDEL, OF NORWOOD, OHIO, ASSIGNOR TO THE DALTON ADDING MA- CHINE COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

ADDING MACHINE.

Application filed January 6, 1923.

This invention relates to adding machines. Adding and calculating machines are usually provided with connections for operation by motor or by hand levers, as conditions may require or as the user may prefer. To avoid confusion and prevent needless operation of parts it is desirable to prevent operation of the hand lever when the machine is operated by motor, and it is also desirable to prevent operation of the -motor when the machine is to be operated by hand.

When error is made in setting up a number in the machine it is desirable to cancel or eliminate the number from the machine and to clear the setting up devices so that the correct number may beset up..

My present invention has special reference to mechanism for obtaining the above mentionedresults, and an object of the inventionis to prevent operation of the machine by the motor when the hand lever is operative, and vice versa, and at the same time permit operation of the hand lever to a limited extent to control the clearing or elimination of an error from the machine by the motor.

Another object of the invention is to provide improved means for controlling the full-stroke device of the machine for the above purposes.

.Other objects will appear from the following description, reference being made to the drawings in which Fig. 1 is a view showing the present invention designed and adapted for use in a machine of the Dalton type and showing the parts in the position they occupy when the machine is under control of the motor and cannot be operated by the hand lever.

Fig. 2 is a similar view showing the main shaft and essential parts of the present invention in position to which they are moved by the motor.

Fig. 3 shows the parts when the hand lever is operated a short distance, leaving the remainingoperation to be performed by the motor in order to clear or eliminate an item from the machine.

Fig. 4 is :1 view showing the parts-adiitt justed to permit operation of-the machine by the hand lever.

Serial No. 611,057.

Fig. 5 is a fragmentary view showing the full-stroke pawl disabled.

Fig. 6 is a similar view showing the fullstroke pawlefi'ective.

The general construction and mode of. operation of the differential andadding mechanisms of adding machines are familiar and one type of motor mechanism for operating adding machines is disclosed in my prior Patents No. 1,209,858, dated December 26, 1916, and No. 1,270,845, dated July 2., 1918. For present purposes it is suflicient to .mention that the lever 1 is arranged to be oscillated by the motor connections (not shown) under con rol of a key 2 adjacent to the keyboard of the machine, vThe leverl engages a lever 3 attached to they rock shaft-4: of the machine, operation of which is necessary for each adding operation of the machine. The shaft 4 is also e nipped with a hand operated part 5 where y said shaft may be rocked tooperate the machine independently of the motor.

The part 5 is connected to the. shaft 4 in a familiar manner which permits the shaft 4 to rock forwardly independently of the part 5 and which rocks theshaft4 from the part- 5 when the latter is operated. This connection comprises a clutch, one member of which is on the shaft 4 and the other member of which is on the. part 5 in the relationship that the shaft 4 can turn from the position shown in Fig. 3 to the position shown in Fig. 2 without movement on the'part of the part5; and the .part 5 cannot turn .in a counter-clockwise direction (Fig. 4) without turning. the shaft 4;

- It is-well known that the motor is caused to operate by depressing the key 2. The key 2 may be locked against operation in which case the machine is wholly under control of the manual operating means including the part 5. or the part 5 may be locked against effective operation in which case-the machine is wholly under control of the motor. The key 2 is attached to a rock shaft 6 having the usual motor controlling connections 7. A detent device 8 has a shoulder 9 that may be held in a raised position above an arm 10 on the shaft 6 to permit rocking ofthe shaft 6 by the key 2, or that may be depressed to position shown in Fig. 4 to prevent depression of the key 2 and thereby prevent operation of the machine by the motor. A slide 11 has 3. depending part 12 for depressing the detent device 8 to the position shown in Fig. 4. A- knob 13 is provided for operating the slide 11.

The mechanism as described is familiar i the Dalton, addingmachine and constitutes a part of the subject matter of my co-pending application Serial No. 472,390, filed May 25, 1921. patented August 28, 1923, No. 1,466,306. The present invention comprises a novel form of full-stroke mechanism and deviccs for controlling the same and, in addition, comprises means for utilizing a partial operation of the part 5 when the machine is under control of the motor. The notched segment 1-1 is rigid upon a lower support 15 and an upper support 16, the inner ed'ge'of the segment 14 being concentric with the axis of the shaft =1. An arm 3 rigid with the shaft 4 supports a full-stroke pawl '17 controlled by a spring 18 so as to, ride against the notched inner edge of the segment 14 to require a full stroke before the direction of movement of the parts can be reversed after having once started. An arcuate plate 19 is positioned at the side of the segment 14 and has its lower end pivoted' upon a support 20 and its upper end formed with a slot'21 receiving the rigid pivot 16. A roller 22 on the pawl 17 ridcsupon the inner curved edge of the part 19 when the latter is in its forward adjustment (Figs. 2 and 3), that is when the parts are adjusted for operation of the machine by the motor, and prevents the pawl 17 from engaging thei'notches in the segment 14. A lever'pivoted on the pivot 16 has anarm 23 having pin andslot connections 24 with the plate 19. An arm of said lever has a roller 26 cooperating with a link 27 the for- 'wardend of which is pivoted to the slide 11 and'the rear end of which issupported upon a. pm 28 extending throngh a slot 29 in said link. When the link 27 is pushed rearwardly by the slide 11, as when the latter is moved to the position shown in Figs. 1, 2 and 3 to place the machine under control of the motor, the arm is raised and the arm 23 is depressed thereby moving the plate 19 forwardly to position to be engaged by the roller 22 and to prevent the pawl 17 from engaging the notches in the segment 1-1. The lever 2325 also has an arm 30 which serves as an abutment stop fora project-ion'ill on the lever 5 to permit limited operation of said lever 5 but to prevent complete operation thereof when the machine is under control of the motor, tha when the parts are in the position shown in Fig. l. \Vhen the slide 11 is moved forwardly to depress the detent device 8 to lock the motor key 2 against operation. the spring 32 draws the operated, a1.

lever arm 30 out of the way of the projection 31 and causes the lever arm 23 to move the plate 19 out of position to be engaged by the roller 22 (Fig. 1). This restores the effectivene'ss of the full stroke device, locks the motor key 2'against operation and permits operation of the hand part 5.

It will be seen that when the machine is under control of the motor (Fig. 1) the hand operated part 5 is capable of movement to a limited extent before the projection or knob 13 strikes the lower end of the lever arm 30. This limited rocking movement of the shaft 4 is snfficicntto utilize the usual restoring devices (not shown) to clear or eliminate an item from the differential mechanism without printing the number or introducing it into the adding mechanism.

From the foregoing it wi invention is of a highly efficient construction and arrangement and obtains all of-its purposes and functions in a satisfactory way. Numerous variations may be made in the arll be seen that. my.

rangement and formation of the parts without departure from the nature and principle of the invention. p

I do notfrestrict myself unessentia'lly, but what I claim and desire'tojse'cnre by Letters Patent is g I 1. -In a machineof the character described, the combination of a rock shaft, :1 motor lever for turning said shaft in one direction, devices control ing 1 the operation of said shaft by said motorlever, a-hand lever for turning said; shaft in the samedirection that the motonlevertu rns it, meansse'ttableto prevent operation of saiddevices'or said hand lever desired, and a. full-'stroke'device for saidshaft and'said hand lever controlled by said last-named means; 1

2. In. a machine of thev character dcscribed, the combination with a part to be mo ar lever't operating said part independently of th'e'hand lever, and a hand leverfor operating said-part independent ly of the motor lever, of a device settable independently 'of said hand lever to prevent operation of said part by the motor lever when it is desired to operate said partfby the hand lever, a. full-stroke pawl supportedby said part to be operated, a stationary segment to be" engaged by said pawl, and means for preventing said pawl from engaging said segment. i of. In a machine of the character described, the combination with a part to be operated. a motor lever for operating said part independently of the hand lever, a hand leverfor operating said part independently of the motor lever, and a fullstroke device for said hand lever, of a device settable to prevent operation of said part by the hand lever and to disable said full-stroke device when it is desired to operate said part by the motor lever.

lili) 4. In a ma-chihe of the" character described, thecom'bina tion *With a partto be operated, a motor lever for operating said part independently of the hand -lever, a hand lever for operating said part independently of the motor lever, and a fullstroke device arranged to function when said hand lever is operated, of a devicesettable to prevent operation of said part by the hand lever and to disable said full-stroke device when it is desired to operate said part by the motor lever and also settab'le to prevent operation of said part by the motor lever and to restore said full-stroke device to effective condition When it is desired to operate said part by the hand lever. 5. In a -machine of the character described, the combination with a motor lever, an element to be operated, connections for controlling the 'intermitten't operation of said element by the motor lever, a hand lever for operating 'said element, and a full-stroke device-for said hand lever, of a part settable to prevent'operation of said connections leaving the hand lever free to operate and leaving said full stroke device effective. and a part settable to prevent operation of said hand lever and to render said fullstroke device ineffective and leaving said connections free to operate.

Q6. a' machine of the character described, the combination With'a motor lever, an element to be operated, connections for controlling the intermittent operation of saidelement by the motor lever, a hand lever for operating said element, and a fulLstroke device for said hand lever, of a part settableto prevent operation of said connections leaving the hand lever free to operate and leavingsaid full-stroke device effective, a partsettable to prevent'operation of said hand lever and to render said full-stroke device ineffective and leavingsaid connections free to operate, and means for controlthesetting of parts for the purpose aforesaid. i i a Inia' machine of thev character describedjfth'ecombination of a motor lever, aaevewarran edio be intermittently operated bythe'mo-tor leverfconnections for controlling "the intermittent" operation of said sectiirid'ileve'r by the motor lever, a detent foifTi'eveifiing operatio'nbf said connections, for moving said det'ent out of positioin to prsvenvb eranon of said connections, a manual device for moving said 'dfetent to position to. prevent operation of safizdfconnctions, a hand lever, a full stl'roke device for said hand lever, and means controlled said manual device for; disabling said full-stroke device. i 4 V '5'8. In a machine of the character destat ment combination afar-00k shaft, a lever for turning sai' shaft in one direction and arraiiged to permit the shaft to be turned independently thereof while the lever remains stationary, anabiitment movable to and from position to prevent complete movement of said lever and to permit less than full movement thereof, and means for controlling said abutment.

.9. In a machine of the character described, the combination of a rock shaft, a lever for turning said shaft in one direction and arranged to permit the shaft to be turned independently thereof while the lever remains stationary, an abutment movable to and from position to prevent complete movement of said lever and to permit less than full movement thereof, means for controlling said abutment, and a full-strokedevice for said' lever that is effective when said abutment is out of position to prevent operation of said lever and ineffective when said abutment is in position topreventoperation of said lever.

V 10. In a machine of the characten'de scribed, the combination of a rock'shaft,'an actuator for turning said shaft in one direction, a hand lever for turning said shaft in the same direction that it is turned by said actuator, a full stroke pawl supported from said shaft preventing returnjmovement of the shaft untilthejhandle moved to full extent of movement, means settable topreventoperation o'fsaid shaft by said hand lever, and a 'device operated by "said means for disabling said full-stroke pawl when" the shaft is to be operated by the actuator. V v

11. In a machine of the character described, the combination of a rock shaft, a pawl pivotally supported by said rock shaft, a rigid segment having notches therein adapted to be engaged by said pawl," a hand lever for operating said rock" shaft, a device settable to prevent operation ofsaid rock shaft by said handlever, and means"controlled by [said device to prevent said pawl from engaging the notches in 's aidsegme'nt.

1 2. In "a. machine 10fwhe character described; tl'1e fcombi'nati'on of a rocl'eshaft; a manually operable partfor'turning said rock shaft from a starting position, a separate in dependently operable part for turningj'said shaft from said starting position while said manually operable part remainsunoperated, a f'ull stroke pawl pivotally supportedby the rock shaft, rigid ysegment ihaving notches adapted to be engaged by saidpawl when'said'shaft is turned by said manfially operable part. 'an elementsettablitb pievent said pawl f'rdin engaging the notches in said segment, and'a device operable? ndependently ofsaid manuallyoperable ,p it to set said elementpto prevent said pafwl fro'in eiigaging theiiotches in i 13. In a machine of thecha'racte scribed, "the, 'c'ombination' o'f aster a manually operable part for"turning said rock shaft froma starting'position', a separate independently operable part for turning said shaft from said starting position -while said manually operablepart remains unoperated, a full stroke pawl pivotally supported by the rock shaft, arigid segment having notches adapted to be engaged by said pawl whenzsaid shaft is turned by said man'- ually operable; part, an element settable to p'revent'said pawl from engaging the notches in said segment, a device operable independently of said manually operable part to set of movement of said lever to prevent complete operation of said rock shaft thereby when the shaft is to be operated by said actuator. 1

15. In aamachine' of the character described, thercombinationbf a rock shaft, an actuator for turning said rock shaft inone direction, a lever forturning said-shaft in the same directionthat it is turned by said actuator, .means settable; to limit extent of movement of said lever to prevent complete operationcof said rockshaft thereby when the shaft is to be operated'by said: actuator, a full-strokedevice, and means for'disabling said full-stroke device whenthe shaft is to be operatedby said actuator.

116.. In, a machine of "the character descr-ibed, the combination of a rock shaft, a lever forturningsaidshaftgin one direction and arranged .to perm itdthelshaft to be turned independentlyithereof while the shaft remains stationary, kan abutment r-movgable to and from position to prevent complete operation of said, leven and-to permit paritial operation thereof, and means for moving said fabutmentfo position-to'permi-t complete op eration of said lever-or to prevent complete operation I and permit partial operation thereof; 1 ---17'. In a machine 4 ofthe character described, thefcombination ofa rock shaft, a lever for turning said shaft in one direction and arranged to permit the shaft to be turned independently, thereofwhile the shaft remains stationary, anabutment movable to and from position. to prevent complete operation of said lever. and ,to permit partial operation thereof, means for moving said abutmenttoposition to permit complete operation of s aid lever or togprevent complete s a -ties a d; P rmi p tia at o ing said abutment .to position to permit complete operationof said lever'orto pre vent complete operation and permit partial operation thereof, a, full-stroke device for said shaft and lever that is effective to require complete movement, of said lever and said shaft when said.- abutment is in position to permit complete operation of said lever, and means for disabling said full-stroke device when said abutment is in position to prevent complete operation of said lever and to permit partial operation thereof, v

. 19. In a machine of. the character described, the combinationj'with rock shaft having a starting position, a manuallyoperable part for turning said-shaft from said starting position, andafull stroke device for said shaft of means operable independently of said manually operable part for turning said shaft .fromsaid starting position, an element, requiring j manipulation when said shaft is to bezturned by said means, and connections settable to disable said full stroke device,andpreventoperation of said manuallyioperable part.

20. .In a machineofv the character described, the combination, Witha rock shaft having aistarting position, a manually operable part forturning said shaft from said starting position, and a fullistroke: device for'said shaft, of means operable independ; entlyof. said Inanually.. ,op erable1 part for turning said shaft fromi saidstarting position, an element requiring.,manipulation when saidshaft ishto be turned by sa d means, connectionszvsettable to disableasaid full strokedeviceand prevent operationpf said manually operable part, ,and means controlled by said connections moneposition thereof to prevent operation of said element. 7 L

21. In. a machine of the character described, the combination with a rock shaft having a starting position, and optionally operable parts for turningsaid shaftfrom said starting position, of connections settable in each of two positions, and devices controlled by said connections in one position .to prevent operation of oneofisaid imal er s lej n to r m t operation of the other of said optionally operable parts.

22. In a machine of the character described, the combination with a rock shaft having a starting position, and optionally operable parts for turning said shaft from said starting position, of connections settable in each of two positions, and devices controlled by said connections in one position to prevent operation of one of said op- 10 tionally operable parts and to permit operation of the other of said optionally operable parts, and vice versa.

' HARRY LANDSIEDEL. 

